Weighing machine



FIG. 1 is a front perspective view thereof,

FIG. 2 is a front plan view thereof,

FIG. 3 is a rear plan view thereof,

FIG. 4 is a top plan view thereof,

FIG. 5 is a bottom plan thereof,

FIG. 6 is a first side plan view thereof; and,

FIG. 7 is a second side plan view thereof. 

The ornamental design for a weighing machine, as shown and described. 